Hibernate - Hibernate an open source Java persistence framework project.
DevExpress XPO - Free-of-Charge (without Technical Support), also see GitHub and Benchmarks.
JDBI - See this.
Entity Framework - See Comparison of Entity Framework vs NHibernate.
Codesmith - CodeSmith is a template-based code generator tool. It features a syntax nearly identical to ASP.
Hibernate ORM - Hibernate team account. Hibernate is a suite of open source projects around domain models. The flagship project is Hibernate ORM, the Object Relational Mapper.